and Physiology
Quiz Results
This quiz was completed on Mar 19, 2020 and you
answered 8 out of 8 questions correctly.
Question 1
Q: About 98% of the human body is composed of only six elements: oxygen,
carbon, hydrogen, nitrogen, calcium, and phosphorous.
A. True (the correct answer)
B. False
Explanation:
The principal systems of the human body interact with each other to create what is
known as the training effect. These principal systems are part of an intricate, multi-
level organizational structure. The simplest level is the chemical level. The smallest
amount of a chemical element is the atom. Atoms can combine to form molecules.
,About 98 percent of the human body is composed of only six elements: oxygen,
carbon, hydrogen, nitrogen, calcium, and phosphorous.
Reference: Fitness: The Complete Guide - Edition 9.0, page: 31
Question 2
Q: The respiratory system is responsible for:
A. Supplying oxygen to the body
B. Eliminating carbon dioxide in the body
C. Helps regulate the body's pH balance
D. A and B
E. A, B, and C (the correct answer)
Explanation:
The respiratory system consists of the lungs and air passageways leading to and
from them: mouth, throat, trachea, and bronchi. The respiratory system supplies
oxygen and eliminates carbon dioxide to tissues in helping to regulate the acid-
alkaline (pH) balance of the body. Respiration is the overall exchange of gases
between the atmosphere, the blood, and the cells.
Reference: Fitness: The Complete Guide - Edition 9.0, page: 41
Question 3
Q: The circulatory system consists of:
, A. Lungs, mouth, throat, trachea, and bronchi
B. Mouth esophagus, stomach, and gallbladder
C. Heart, arteries, and veins (the correct answer)
D. All of the above
E. None of the above
Explanation:
The circulatory system serves as the body’s transportation system. The heart,
arteries, veins and blood vessels are parts of this system. The circulatory system
consists of two subsystems: the cardiovascular system and the lymphatic system. In
the cardiovascular system, the heart pumps blood through a vast network of blood
vessels. The lymphatic system helps preserve fluid balance within the body and
protects against disease.
Reference: Fitness: The Complete Guide - Edition 9.0, page: 44
Question 4
Q: The nervous system is made up of the:
A. Peripheral nervous system
, B. Central nervous system
C. Proximal nervous system
D. A and B (the correct answer)
E. A and C
Explanation:
The nervous system is the control center of the body and the network for internal
communication. The nervous system is made up of two major parts: the central
nervous system (CNS) and the peripheral nervous system (PNS). The central
nervous system is comprised of the brain and the spinal column. You should think of
the CNS as being one organ and not separate entities. The CNS receives messages
and, after interpreting them, it sends instructions back to the body. The peripheral
nervous system does two things: It relays messages from the CNS to the body (the
efferent system) and it relays messages to the CNS (the afferent system) from the
body.
Central nervous system (CNS): System of the body comprised of the brain and
spinal column.
Peripheral nervous system (PNS): Relays messages from the CNS to the body (the
efferent system) and relays messages to the CNS (the afferent system) from the
body.
Reference: Fitness: The Complete Guide - Edition 9.0, page: 58
Question 5